Neil Sargison has interests in planned ruminant livestock health and production and has published many clinically-relevant papers and articles in this field. He is the Scientific organiser of the 9th International Sheep Veterinary Congress, May 2017. He has written a textbook, 'Sheep Flock Health - A Planned Approach', which outlines a practical and rational approach to the diagnosis and management of sheep diseaes, and has contributed papers to other sheep, cattle, animal welfare and veterinary parasitology textbooks. Neil Sargison's principal research interests and primary undergraduate teaching responsibilities are in the field of veterinary parasitology, due to the fact that parasitic diseases are amongst the most important production limiting problems of ruminant livestock, and he has published widely in this field. Current projects include: the use of deep amplicon sequencing approaches to study nematode parasite diversity and co-infections; study of the performance of different sheep breeds and selected lines in a harsh hill environment; studies of the changing epidemiology of fluke parasites; study of the population genetics of aleles conferring resistance to anthelmintic drugs in nematode parasites; Haemonchus contortus and Teladorsagia circumcincta genomics; and development of train-the-trainer livestock helath education in poor agricultural economies.